With the development of the power grid, and especially influenced by the construction and transformation of power grid in urban and rural areas, it puts forward new requirements for power quality improvement in Distribution Network Management System (DMS). So the data exchanges between Energy Management System (EMS) and DMS are increasing, and the function of sending control signals between DMS and EMS is also becoming more and more urgent. Based on the extended application research of IEC104 protocol between DMS and EMS, the function of transmitting the remote measuring data and remote communication data to DMS via EMS is realized. Using the concept of remote control information redundancy check, the judgement strategy of remote control information redundancy check is given. Then, the method of data interaction and safety remote control between EMS and DMS is proposed. The application in East China has proved that the method is feasible and practical. This work is supported by National Key Research and Development Program of China:Research on AC/DC Hybrid Renewable Energy Technology based on Power Transformer (No. 2017YFB0903300).